Ventilating closet



Aug. y I E. H. RAPER ET AL.

VENTILATING CLOSET Filed Auez. 28, 1 924 2 Sheets-$heet 1 a m "tow fdward '/7( Rape/i Char/es E Rape/A E. H. RAPER-ET AL vrm'z'mmmcs cLdsET 2 Sheets-Sheet v FiledvAuz.28,1924

Patented Aug. 23, 1927.

UN l T S ATES PATEN OFFICE V EDWARD H. RAPER, OF MAPLETON, IOWA, AN-D CHARLES E.; RAPEB, E SHERIDAN,

WYOMING.

VENTILATING. CLOSET;

Application filed-August 28; 1924. SerialNo. 734,695.

valve, thus'causing a flow of fluid through a tube mounted within the ventilating'chamber. The flow of iluid'through the tube creating a suction in the chamber which draws it to a suitable waste outlet. The device is so arranged and constructed that the'spray and suction through the ventilating chamber will be automatically cut oii 'or closed as soon as the downward pressure on the seat is released.

A further object of the invention is to provide an injecting tube with means extending from its inner periphery into the path ofthe stream for impeding the passage thereof and v permitting the foul air to mix with the fluid as it passes through the tube to the waste outlet.

Another object of the invention consists in the provision or means for preventingthe water in the injecting tube from flowing back through the supply pipe in the event'of the bowl running over when the main supply is shut oti.

lieferringto the drawings:

Figure 1 is a sideelevational view of a toilet bowl with our invention attached thereto.

Figure 2 is a plan View of Figure 1.

Figure 8 is an enlarged detailed View of Figure 1v with parts in section, for the purpose of clearness of illustration.

Figure 4 is a detail perspective view showing the means for actuating the supply valve.

1* igure 5 is a sectional detailed view showing the connection of the interior of the bowl with the ventilating chamber.

Referring to the drawings, in which like numerals indicate like parts in theseveral views, 10 denotes a watercloset bowl of the ordinary construction and design, whiclris in the foul air from the bowl and conducts provided with. the. usual flushing rim 11, having circumferentia-lly spaced'openings 12 1 01-1 receiving the fluid which is conducted flOHl' the pipe. 14s.

flushing; tank; l3uthrough the Ar ventilating chamber- 15, preferably positioned to one side ofzthe bowl, communicates with the rim liithrougn a passage 16,

and.hassitsilowerend delivering to a waste outlet 16" inxthe trap .portionand below the water-I line of the bowl, as: indicated in dot anddash lines in Figure 5. Traversing the chamber 15 andremovably supported therein is an in ectin-g tube 17' prov-idedjwith downwardly inclinedperforations 18, preferably positioned adjacent its upper end, while a series or inclined blades eXtend from; the innerwall of the lower portionof the'tube so as to break up thestrea-nrand aerate the wateras itpasses through the tube.

It will; be observed' that the outlet16 oi thechamber-15 is so arranged relative to the bowl ll) as-topern'iiti the noxious gases to pass-through thewater'standingin the bowl and be delivered to the waste; outlet, during the ventilating operation.- Asthewater in the bowl "acts a's'a seal when the ventilator is \vorkii'ig, there is no liability of thenoxious gases or escaping sewer gases passing upwardthrough thechamber' 15 and contaminating themain supply. It, for any reason, the flushing device should become inoperative, the water sealwill-preclude the possibility ofthe noxiousigases in the bowl escaping upwardly through the Ventilating chamher-15.

A pipe 20, which directly communicates with the main supply, 21, is preferably connected to the tube 17' by means of an exteriorly' threaded nozzle 22, .which has a downwardlytapered orifice 25 for delivering the fluid from the supply pipe .20 to the int rior of'the tube 17; An annular flange 24 is preferably positionedbe'h veen the ends of the nozzle 22 so as to be engaged by the flange 25 on the; coupling nut 26 that is threaded to the exterior of the extension sleeve 27. Thesleeve 2Tsurrounds the upper portion of the tube, and] is.- secured atits lower end by; thenut 28 to the chamber 15.

'The tube 17 is preferably.provided with an annular tapered flange 29, which engages a correspondingly formed seat in a shoulder 30 projecting from the interior of the chamber 15 so that upon the tightening up of the nut 26 on the sleeve 27, the lower portion of the tube will be maintained. in proper position due to the wedging engagement of the flange 29 with the shoulder 30. 'lt'will be seen that by reason of this construction the device may be readily dismantled and access had to the interior of the chamber and the ejector trap for inspecting or renewing the parts.

The seat 31 is preferably connected pivotally to a rearward extension 32 of the closet by, means of the bolts 33, which extend through suitably spaced openings in the extension 32 and are secured to the under side thereof by the nuts 34, as shown in Figure 3. The upper ends of the bolts 33 are curved outwardly and connected together by a transverse fulcrum rod 35. The seat 31 carries a pair of rearwardly extending brackets 36, each of which has an upwardly extending arm 37, having a bearing eye which receives the rod 35 as shown in Figure 4. A valve operating lever 38 is provided at one end with an upwardly extending arm 39 (Fig. 4) pivoted on the rod 35. The lever 38, when the seat 31 is raised, rests against a lug 40 which extends laterally from one of the bolts 33 so as to limit the downward movement of the lever. The opposite end of the lever 38 is secured to a link 41 which is threaded to the lower portion of an arm 42 having a forkedend 42' and is maintained in vertical adjustment relative to the arm by the nut 43.

An. arm 44 connects the link 43 to the supply control valve 45. The valve 45 may be of any conventional oscillating type, and is arranged to regulate the admission of the supply from the pipe 21 into the interior of the tube 18. A coil spring 46 is connected at one end to an arm 47 secured to the underside of the bowl extension 32 by one of the bolts 33 while the opposite end of the spring is attached to the lever 38 so as normally to depress the lever and maintain the valve 45 closedand the seat raised.

One of the seat brackets 36 is provided with a tapered lug 48 which is in alignment with and frictionally engages a corresponding lug 49 formed integral with the lever 38, as shown in Figure 4, so that upon the seat being depressed when used by an occupant, it will cause the bracket 36 to move rearwardly, thus raising the operating lever 38, which opens the valve and allows fluid to flow through the tube 17. Moreover, when the seat is not in use, depression of lever 38 by spring 46 will cause the lug 49 'to push the lug 48 forwardly which will raise the seat 31 and at the same time will close the valve 46.

38, the adjustable pin 42 and the adjacent end of the link 44 secured to the bifurcated arm 42, to be raised against the action of the spring 46 which will effect rotation of the valve stem connected to; the opposite end of the link 45, thereby opening the valve 46.

As the water passes through the tube 17, it creates a suction in the chamber, which draws in the foul air from the interior of the bowl through the passage 16 and the inclined perforations 18. The passage of the liquid through the tube will be impeded by the blades 19 which serve to effectively break up the stream and thoroughly mix the water with the foul air drawn into theinterior of the tube. V,

When use of the seat is discontinued, the tension of the spring 46 will force the operating lever 38 and its associated parts downwardly, thereby closing the valve and at the same time the bracket 36 will be moved forwardly, thus raising the seat 31 to the position as shown in Figure 1. I

In order to prevent the water from being drawn upwardly in the tube 17 and pipe 20 in the event of the bowl running over when the water supply is shut off, there is preferably provided an enclosed member 50, having a restricted air opening 50 preferably in the bottom thereof. which communicates with the upper portion of the chamber 15 through the pipe 51. It will be seen that should the bowl overflow. the air admitted to the chamber 15 through the opening 50 will preclude the possibilityof a vacuum being formed and the lifting up of the water into the chamber. l an additional precaution against permitting the water from the bowl flowing back into the supply pie, a check valve 52 may be mounted in theflI-casing of the valve 45, this valve, as indicated in Figure 3, permitting admission of water to casing 15 from pipe 20 butvprevents it from flowing in the opposite direction.

By reason of the present construction a' very simple and eihcient ventilating device is provided for completely removing the noxious gases from the interior of the bowl. In addition to reducing to a minimun'i the waste of water, the device so constructed as to be readily dismantled for the purpose of inspection or renewal of any of the parts.

It will be understood that the form of the invention shown and described is merely illustrative, and in no sense restrictive. and that while the device is conventionally disclaims.

the bowl, aseat' for said; bowl, means; for

creating suction, through i said chamber ,to

withdraw; foul; air from; the,bowl comprising a perforated tube mounted, within the chamber, a supply; pipe communlcating with saidjtub a valve for controlling the supply to said tube, means operatively connected to said seat and said valve for causing fluid to flow through said tube when the seat is lowered, and means communicating with the atmosphere and connected to the ventilating chamber for preventing back suction of the liquid passing through the tube when the supply is shut off.

2. The combination with a water closet bowl and the waste pipe of the closet, of a ventilating chamber communicating with the bowl, a seat for said bowl, means for creating suction through said chamber to withdraw foul air from the bowl comprising a perforated tube mounted within the chamber, a supply pipe communicating with said tube, a valve for controlling the supply to said tube, means operatively connected to said seat and saidvalve for causing fluid to flow through said tube when the seat is lowered, and a member having a restricted air opening in the bottom thereof communicating'with said'chamber to prevent back suction of the liquid when the supply is shut off.

3. The combination with a water closet bowl and the waste pipe ofthe closet, of a ventilating chamber communicating with the bowl, means for creating suction through said chamber to withdraw foul air from the bowl comprising a perforated tube mounted in said chamber and having inwardly projecting blades, a supply pipe communicating with said tube, a seat for said bowl, and means operatively connected to said seat and pipe for causing fluid to flow through said tube when the seat is depressed.

The combination with a water closet bowl, of a ventilating chamber communicating with the bowl and having a tapered flange on the inner wall thereof, a seat for said bowl, means for creating suction through said chamber to withdraw foul air from the bowl comprising a tube having a collar adapted to engage said flange, said tube having openings therein above said collar and inwardly projecting blades below the collar, means connecting the upper end of the tube to the chamber, said means adapted to force the collar into wedging engagement with s i flangewheni thev par s are. et p, a supplyv pipe i cc mnunic a ng with i aid: ub

andi i ans for causing he uid to flow through said tube when the seatis depressed.

5. The combination, with a, water closet bowl, of 'a,ventilating chamber communicating; with the j bowl, ai seat, for said bowl, means for, creating suction throughsaid chamber to draw the foul air: from, the

bowl comprising a, perforated tube mount- 6(l W 1th 1n; the chamber, wedg ng means on aida r be dapte ri t e yengage a complementary, meanspn; the, inner wall of the chamber for maintaining; the, former in position, and mean-soperatively, connected to i said pipe and'seat for causing the fluid to said tube adapted to frictionally engagecomplementary means on the inner wall of the chamber for maintaining the former in position, and means operatively connected to said pipe and seat for causing the fluid to flow through said tube when the seat is lowered.

7. An attachment for bowls of the class described comprising, a chamber communicating with the bowl, a perforated tube extending within said chamber for drawing the foul air from the bowl, a supply pipe connected to said tube, a' clamping nut connecting one end of the tube to said chamber, and wedging means on the interior of the chamber engaging complementary means in the tube for maintaining the opposite end of the tube in position, said means being controlled by the tightening up or loosening of the nut.

8. An attachment for bowls of the class described comprising a chamber communicating with said bowl, said chamber having an annular flange on its inner wall provided with a tapered opening, a perforated tube extending within said chamber and having a tapered collar thereon for engagement with the flange on said chamber, and means connecting the upper end of the tube to the chamber, said means adapted to force the lower portion of the tube into wedging engagement with said chamber.

9. An attachment for bowls of the class described comprising a chamber communicating with said bowl, said chamber having an annular flange on its inner wall provided with a tapered opening, a perforated tube extending within said. chamber and having a tapered collar thereon for engagement With the flange on said chamber, and means connecting the tube to the chamber, said means adapted to control the degree of engagement oi? the collar with the flange.

10. An attachment for boWls of the class described comprising a chamber communicating with said bowl, said chamber having an annular flange on its inner Wall'provided With a tapered opening, a perforated tube extending Within said chamber and having a tapered collar thereon for engagement With the flange on said chamber, a nut for securing the upper end of the tube to said chamber, and means upon the tightening up set our h ands.

of said nut for forcing the collar into Wedging engagement With said flange.

11. The combination With a water closet boWl and the Waste pipe of the closet, of a ventilating chamber communicating at its upper end with the rim of the bowl and having an opening in the bottom communicating with the bowl below the Water line thereof, and means for creating suction through the chamber to Withdraw foul air from the bowl upon depression of the seat.

7 In testimony whereof We have hereunto EDWARD H. RAPER. CHARLES E. RAPER. 

